If that be a rhinovirus, where on earth did it come from?

A friend of mine spent a few weeks hiking and camping in some mountains, and didn't see any people during those weeks. During the concluding few days of his trip, his sleeping bag got damaged and could no longer save him completely warm. The next morning, the weather had turned cooler, and he woke up shivering, and beside a sore throat. By the time he got back to civilization, he had adjectives the symptoms of a cold.

If a cold is caused by a rhinovirus, doesn't it imply you have to be infected by someone who have that rhinovirus? But he was nowhere near any other people. How could he own been infected?Answers:
There are two modes of transmission: via aerosol of respiratory droplets and from contaminated surfaces, including direct person-to-person contact. A high majority of colds are transmitted by autoinoculation by contact with contaminated surfaces.Rhinoviruses occur worldwide and are the primary cause of adjectives colds. Symptoms include sore throat, runny nose, nasal congestion, sneezing and cough; sometimes accompanied by muscle aches, fatigue, malaise, headache, muscle fearfulness, or loss of appetite. Fever and extreme exhaustion are more usual in influenza.Rhinoviruses are the most common viral infective agents in humans, and a causative agent of the adjectives cold. It is lytic in nature. Rhinovirus grows best in the temperature between 33–35 °C, and this may be why reproduction occurs in the nose. It is sensitive to caustic environments.

SPREAD : There are two modes of transmission: via aerosols of respiratory droplets and from contaminated surfaces, including direct person-to-person contact. A high majority of colds are transmitted by autoinoculation by contact next to contaminated surfaces.

Rhinoviruses occur worldwide and are the primary cause of common colds. Symptoms include sore throat, runny proboscis, nasal congestion, sneezing and cough; sometimes accompanied by muscle aches, fatigue, malaise, headache, muscle weakness, or loss of appetite. Fever and extreme nouns are more usual in influenza. Children may have six to twelve colds a year. In the United States, the incidence of colds is higher within the fall and winter, with most infections occurring between September to April. The seasonality may be due to the start of the school year, or due to those spending more time indoors (thus in closer proximity with each other) increasing the coincidence of transmission of the virus. Source(s): http://en.wikipedia.org/wiki/RhinovirusRelated Questions: